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Topic notes

topic 7 2014 notes.doc

topic 17 2014 notes.doc

Investigations

The effect of changes on equilibria.doc

Resources

Animations

nitrogen oxides equilibrium and temperature cobalt chloride equilibrium
simulations:

Excellent use of graphs to illustrate main ideas: equilibrium concepts

Old IB specification
vapour pressure introduction
another introduction
tutorial
how temperature and intermolecular forces affect vapour pressure
more on vapour pressure
video tutorial on Gibbs free energy and Kc
tutorial on Gibbs and equilibrium constant

Worksheets

Introducing equilibrium.doc

vapour pressure.doc

Revision

Remember:

When explaining effect of pressure on position of equilibrium make sure you refer to the number of gaseous molecules on either side.
A catalyst lowers the activation energy equally of both the forward and reverse reaction.
Equilibrium constant only changes when temperature changes.
Equilibrium expression should use concentrations at equilibrium.